When setting up SDK, just return if there's no installed Visual Studio of the specified version.
When setting up SDK, just return if there's no installed Visual Studio
of the specified version.


git-svn-id: 7892167f69f80ee5d3024affce49f20c74bcb41d@4299 fdb21ef1-2011-0410-befe-b5e4ea1792b1

azverkan/scons,azverkan/scons,azverkan/scons,azverkan/scons,azverkan/scons